What is the working pressure range for these hammers?

The working pressure ranges from 0.7 MPa to 2.5 MPa depending on the specific model and size.

Are the products inspected before shipment?

Yes, 100% inspection including visual and functional checks is performed on all finished products.

DHD/Cop Series High Pressure DTH Hammers

Name: DHD/Cop Series High Pressure DTH Hammers
Brand: Changsha Chaojingang Machinery Manufacturing Co., Ltd.
SKU: 1904448942

Hunan, ChinaChangsha Chaojingang Machinery Manufacturing Co., Ltd.

US$30.00-300.00

1 Piece

Product profile

Customization

Available

Certification

ISO 9001:2000

Standard

JIS, ASTM

Model NO.

CD55A

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Transport Package

Ply-Wooden Cases for Exporting

Specification

2 Inch to 12 Inch

Trademark

Super Diamond

Origin

China

HS Code

8207199000

Production Capacity

10000

Key features

Foot Valve Free Design: Eliminates foot valve fracture and expansion issues for higher reliability.

High Drilling Speed: Drilling speed is 15%-30% higher than hammers with foot valves.

Energy Efficient: Lower energy consumption and 10% lower oil consumption compared to standard models.

Simple Structure: Reliable parts with long life and easy, low-cost maintenance.

Wide Size Range: Available in sizes from 1 inch to 12 inches for various drilling needs.

ISO 9001 Certified: Manufacturing process and quality management certified to ISO 9001:2000.

Full Customization: Offers full customization, minor customization, and customization from samples or designs.

100% Product Inspection: Every finished product undergoes visual and functional inspection before shipment.

Company profile

Changsha Chaojingang Machinery Manufacturing Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai Port; Shenzhen PortAverage Response Time: ≤2.17h

AI-Powered supplier vetting

SummaryThe supplier demonstrates product R&D, ODM, SDK availability, and broad customization capabilities, including customization from samples, designs, full customization, and minor customization. It reports eight years of export experience, export activity representing 51%–70% of total sales, self-operated import and export rights, and participation in an offline international construction machinery exhibition. Service quotations support FOB, CIF, CFR, and EXW, with a stated one-month average lead time in both peak and off-seasons. However, the supplier reports no overseas warehouse, showroom, agents, or branches, and no overseas service countries. ISO9001:2015 certification and recent fire drills are stated, but no factory environmental impact assessment report is available. Financial records provided for recent years show zero values for revenue, profit, margins, costs, and current ratios, preventing a positive assessment of financial credibility. Evidence of production scale and named customer cases is...

Supplier typeThe supplier appears to be a manufacturing-oriented rock-drilling equipment provider with R&D, ODM, SDK, export, and customization capabilities. Its products are described for earthwork, mining, water-well, construction, geothermal, and municipal engineering applications, while it does not provide OEM services for popular brands.

CertificationsThe supplier reports holding an ISO9001:2015 certificate and conducting regular fire drills during the past year. However, it also states that the factory has no environmental impact assessment report, so the evidence supports quality-system certification but not comprehensive environmental documentation.

Financial creditThe supplied financial records for the stated recent years report zero operating revenue, operating costs, gross profit, operating profit, gross margins, and current ratios. These values do not provide positive evidence of financial strength and materially limit the ability to verify financial credibility.

R&D capabilityThe supplier reports that it had new products during the past year, provides ODM services, and has an available SDK. These are explicit indicators of product development and technical integration capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization. It also reports R&D capability and ODM service availability, supporting a broad customization offering.

Product Q&A

Q:What are the advantages of the CD55A high pressure DTH hammer?

It features a foot valve free design to prevent fractures, offers 15-30% higher drilling speed, consumes less energy and oil, and has a simple structure for easy maintenance.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.

Q:Do you offer customization services?

Yes, we provide full customization, minor customization, and customization from samples or designs.

Q:What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

Q:What payment terms do you accept?

We accept LC, T/T, PayPal, Western Union, and small-amount payments.